A laser tube cutting machine specifically for round tubes

Abstract

The present invention discloses a laser tube cutting machine for round tubes, comprising a bed body, a movable chuck slidably connected to the bed body, a support mounting frame provided at the cutting end of the bed body, a fixed chuck provided inside the support mounting frame, a laser cutting head mechanism provided on the top of the support mounting frame, a control device provided on a longitudinal side of the support mounting frame, a workbench provided on a transverse side of the cutting end of the bed body, and a support mounting plate provided on a longitudinal end between the bed body and the workbench. The beneficial effects of the present invention are as follows: the present invention has a reasonable design, a stable and firm overall structure, and strong practicality; it can not only solve the problem of a section of pipe extending out of the chuck causing vibration, but also solve the problem of the pipe being easily bumped or deformed by impact during the blanking process after cutting, thereby greatly improving the quality of pipe cutting processing and being suitable for popularization and use.

Description

Technical Field

[0001] The present invention relates to the technical field of laser tube cutting machines, in particular to a laser tube cutting machine dedicated to round tubes. Background Art

[0002] Laser tube cutting machine refers to a device that uses a laser head to emit a high-power density laser beam to perform thermal cutting on tubes. Compared with traditional physical tube cutting equipment, laser tube cutting machine has the characteristics of energy saving, easy use, space saving, safety and efficiency, and multi-functionality. It has become one of the fast tube cutting methods and has been widely used in the field of tube processing.

[0003] Chinese patent CN215588166U discloses a laser tube cutting machine that can lower the front chuck into the machine tool body by controlling a lifting device. When needed, it can be extended from the top of the machine tool body, making it more flexible, space-efficient, and saving installation and maintenance costs. Furthermore, when a certain amount of cut product remains, the rear chuck can be controlled to carry the product out of the front chuck first, and then the front chuck is controlled to descend to avoid the movement of the rear chuck. This allows the rear chuck to have a wider range of travel and be closer to the cutting device, thereby reducing the amount of product leftover and saving costs.

[0004] However, in actual application of the technical solution of the above patent, during the rotation processing of the pipe, the section of the pipe extending out of the chuck is prone to jumping. At the same time, after the pipe is cut, it falls directly to the ground or into a collection trough on the ground. The height of the drop is relatively high when it falls. Combined with the influence of the pipe's own gravity, it is easy for the pipe to be bumped or deformed by impact, affecting the quality of the finished product. Further development and improvement are needed. Summary of the Invention

[0005] The purpose of the present invention is to provide a laser tube cutting machine specifically for round tubes in order to solve the problem that during the existing laser tube cutting machine, a section of the tube extending out of the chuck will jump, affecting the accuracy of the tube cutting process. At the same time, the blanking after the tube is cut off is likely to cause the tube to be bumped or deformed by impact, affecting the quality of the tube cutting process.

[0006] The present invention achieves the above-mentioned purpose through the following technical solutions: a laser tube cutting machine specially designed for round tubes, comprising a bed body, a movable chuck being slidably connected to the bed body, a support mounting frame being provided at the cutting end of the bed body, a fixed chuck being provided on the inner side of the support mounting frame, a laser cutting head mechanism being provided at the top of the support mounting frame, a control device being provided on the longitudinal side of the support mounting frame, a workbench being provided on the transverse side of the cutting end of the bed body, a support mounting plate being provided at the longitudinal end between the bed body and the workbench, a support blanking assembly being slidably connected to the surface of the support mounting plate on the side close to the laser cutting head mechanism in the vertical direction, a collection box being provided below the support blanking assembly, and a slag removal assembly being provided on the workbench.

[0007] The U-shaped support plate is fixed on the upper surface of the U-shaped support plate, and the U-shaped support plate is connected to the upper surface of the U-shaped support plate in a sliding manner. The top of the block contacts the inner surface of the top of the U-shaped support connecting plate, and a pressure sensor is provided on the top of the U-shaped support connecting plate between the supporting plug-in rods, and a level sensor is provided at one end of the bottom of the V-shaped supporting plate, and two inclined surfaces on the inner side of the V-shaped supporting plate are symmetrically provided with a plurality of supporting lifting rollers along the longitudinal direction, and the two inclined surfaces on the inner side of the V-shaped supporting plate are located between the supporting lifting rollers and an electromagnet is provided. Air cavities are provided on the outer surfaces on both longitudinal sides of the V-shaped supporting plate corresponding to the position of the laser cutting head mechanism, and the inclined surfaces on the longitudinal ends of the inner longitudinal ends of the V-shaped supporting plate are equidistantly provided with a plurality of dust extraction holes, and the dust extraction holes on the inclined surfaces on the longitudinal ends of the inner longitudinal ends of the V-shaped supporting plate are respectively connected to the air cavities on the outer longitudinal sides of the V-shaped supporting plate, and the air cavities are connected to the output ends of the dust extraction mechanism, and a lifting support mounting plate is provided on the surface of one side of the U-shaped lifting support plate close to the support mounting plate in the longitudinal direction, and a rotation limiting mechanism is provided on the top of the lifting support mounting plate, and a lifting mechanism is provided between the lifting support mounting plate and the support mounting plate.

[0008] Furthermore, the rotation limit mechanism includes a support limit column arranged on the top of the lifting support mounting plate, and when the V-shaped supporting plate rotates to the highest point along the supporting rotating axis, the longitudinal side surface contacts the longitudinal side surface of the support limit column, and fixed mounting plates are provided on both lateral sides of the support limit column, and a first lifting device is provided on the bottom of the fixed mounting plate away from the support limit column, and the top output end of the first lifting device passes through the fixed mounting plate and extends to the top of the V-shaped supporting plate to install a limiting pressure plate, and the limiting pressure plate is provided on the lateral side of the first lifting device. A guide plug rod is provided, and the guide plug rod is plugged into the fixed mounting plate, and an arc-shaped limiting groove is provided at the bottom of the limiting pressure plate corresponding to the axis center position of the fixed chuck.

[0009] Furthermore, the lifting mechanism includes a ball nut seat arranged in the longitudinal direction of the lifting support mounting plate close to one end of the support mounting plate, a transmission screw is arranged in the ball nut seat, and second support rotating seats are provided at both ends of the transmission screw, and the second support rotating seats are connected to the longitudinal side surface of the support mounting plate, and a second rotating motor is provided on the outside of the second support rotating seat at one end of the transmission screw, the second rotating motor is fixedly connected to the support mounting plate, and the output end of the second rotating motor is connected to one end of the transmission screw.

[0010] Furthermore, the upper surface of the electromagnet is located between the inner surface of the V-shaped supporting plate and the end of the supporting lifting roller away from the inner surface of the V-shaped supporting plate.

[0011] Furthermore, a rotary bearing is provided between the first supporting rotary seat and the supporting rotary shaft, and between the second supporting rotary seat and the transmission screw.

[0012] The top of the U-shaped lifting support frame is connected to the movable support seat in a transverse sliding manner, and a linear transmission mechanism is provided between the movable support seat and the longitudinal side surface of the U-shaped lifting support frame. A guide support column is provided at the top of the U-shaped lifting support frame near one end of the fixed chuck, and a movable support rod is plugged into the guide support column, and the movable support rod and the fixed chuck axis are located in the same longitudinal position, and a supporting mounting rod is installed at one end of the movable support rod near the fixed chuck, and the other end is connected to the movable support seat. A protective plate made of graphite material is provided on the top of the supporting mounting rod, and a scraper plate is provided on the bottom.

[0013] Furthermore, the linear transmission mechanism is a transmission structure in which a drive motor is equipped with a transmission gear and a transmission rack that are meshed with each other.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The present invention has a reasonable design, a stable and firm overall structure, and strong practicality. It not only solves the problem of the section of pipe extending out of the chuck causing jumping, but also solves the problem of the pipe being easily bumped or deformed by impact during the blanking process after cutting, thereby greatly improving the quality of pipe cutting.

[0016] 2. Specifically, when the V-shaped support plate in the blanking support assembly rotates to the highest point along the support rotation axis, it is located at the same longitudinal position as the fixed chuck. Then, the lifting mechanism cooperates to drive the V-shaped support plate to rise and fall, thereby supporting and lifting the pipe extending to the outside of the fixed chuck, preventing it from sagging or jumping during rotation, thereby improving the quality of the cutting process;

[0017] At the same time, the V-shaped support plate is connected to the U-shaped support connecting plate through a structure that cooperates with a support plug rod and a limit block. In this way, the pressure sensor can monitor the gravity of the V-shaped support plate itself. When supporting and lifting the pipe, the lifting force applied to the pipe can be monitored in real time according to the pressure difference, avoiding the phenomenon of pipe sagging, deformation or jumping due to excessive or insufficient supporting force, thereby further improving the quality of pipe cutting.

[0018] When the lifting mechanism drives the V-shaped supporting plate holding the pipe to drop down and drop the material, the electromagnet is in a working state, which has a certain adsorption force on the cut pipe to prevent it from sliding off the V-shaped supporting plate during the lifting process. When the cut pipe in the V-shaped supporting plate is close to the collection box, the electromagnet stops working, and the first rotating motor drives the supporting rotating shaft to rotate, so that the V-shaped supporting plate rotates 45-90 degrees, so that the cut pipe can be separated from the V-shaped supporting plate and enter the collection box, which solves the problem that the pipe is easily bumped or deformed by the impact due to the large drop height and the influence of its own gravity.

[0019] In addition, by setting up an air cavity, a dust extraction hole, and a structure in which the output end of the dust extraction mechanism is connected to the air cavity, the smoke and dust generated during the pipe cutting process can be extracted, thereby improving the air quality of the operating environment and ensuring the health of the operators.

[0020] 3. Specifically, the support limit column in the rotation limit mechanism is set on the top of the lifting support mounting plate. When the V-shaped support plate rotates to the highest point along the support rotation axis, its longitudinal side surface contacts the support limit column, which makes it easy to quickly adjust the V-shaped support plate and the fixed chuck to the same longitudinal position, making it convenient to support and lift the pipe;

[0021] The first lifting device can drive the limit pressure plate to rise and fall. The guide plug-in rod on the limit pressure plate is plugged into the fixed mounting plate to ensure the stability of the lifting process. The arc-shaped limit groove at the bottom of the limit pressure plate corresponds to the axis position of the fixed chuck, which can effectively limit the pipe when it rotates to prevent it from jumping upward. In addition, the limit pressure plate can cooperate with the electromagnet to keep the relative position of the pipe stable during the process of the V-shaped support plate driving the pipe to rise and fall, thereby preventing the pipe from slipping off the V-shaped support plate and ensuring the smooth progress of the pipe processing process in all aspects.

[0022] 4. Specifically, the slag removal assembly can be flexibly adjusted according to round pipes of different sizes through the cooperation of the second lifting device and the U-shaped lifting support frame, greatly improving the scope of application;

[0023] With the cooperation of the linear transmission mechanism and the movable support seat, the movable support rod and the support mounting rod are driven to move, so that the scraper can accurately act on the inner wall of the pipe at the cutting position, effectively scraping off the slag generated on the inner wall of the pipe during the cutting process;

[0024] In addition, the support mounting rod and the movable support rod are connected by bolts, which facilitates the replacement of scraper plates of different models. The most suitable scraper plate can be selected according to the characteristics of the slag generated by different pipe materials and cutting processes to improve the slag removal efficiency and effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0026] Figure 2 Schematic diagram of the three-dimensional structure of the supporting blanking assembly in the present invention;

[0027] Figure 3 A top view of the supporting blanking assembly of the present invention;

[0028] Figure 4 This is a front view of the local structure of the supporting blanking assembly in the present invention;

[0029] Figure 5 for Figure 4 Enlarged view of part A in the middle;

[0030] Figure 6 Schematic diagram of the three-dimensional structure of the rotation limiting mechanism of the present invention;

[0031] Figure 7 Schematic diagram of the three-dimensional structure of the lifting mechanism of the present invention;

[0032] Figure 8 Schematic diagram of the three-dimensional structure of the slag removal component of the present invention;

[0033] Figure 9 for Figure 8 Enlarged view of part B in the middle.

[0034] In the figure: 1-bed body, 2-movable chuck, 3-support mounting frame, 4-fixed chuck, 5-laser cutting head mechanism, 6-control device, 7-workbench, 8-support mounting plate, 9-support blanking assembly, 10-collection box, 11-slag removal assembly;

[0035] 901-U-shaped lifting support plate, 902-V-shaped support plate, 903-support rotating shaft, 904-first support rotating seat, 905-first rotating motor, 906-U-shaped support connecting plate, 907-support plug rod, 908-limiting block, 909-pressure sensor, 910-level sensor, 911-support lifting roller, 912-electromagnet, 913-air cavity, 914-dust extraction hole, 915-lifting support mounting plate, 916-rotation limiting mechanism, 917-lifting mechanism;

[0036] 9161-Support limit column, 9162-Fixed mounting plate, 9163-First lifting device, 9164-Limiting pressure plate, 9165-Guide plug rod, 9166-Arc-shaped limit groove;

[0037] 9171-ball nut seat, 9172-transmission screw, 9173-second support rotating seat, 9174-second rotating motor;

[0038] 1101-U-shaped lifting support frame, 1102-second lifting device, 1103-movable support seat, 1104-linear transmission mechanism, 1105-guide support column, 1106-movable support rod, 1107-support mounting rod, 1108-protective plate, 1109-scraper plate. DETAILED DESCRIPTION

[0039] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0040] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0041] Combine Figure 1 The laser tube cutting machine shown in the figure comprises a bed body 1, a movable chuck 2 is slidably connected to the bed body 1, a support mounting frame 3 is provided at the cutting end of the bed body 1, a fixed chuck 4 is provided on the inner side of the support mounting frame 3, a laser cutting head mechanism 5 is provided on the top of the support mounting frame 3, a control device 6 is provided on the longitudinal side of the support mounting frame 3, a workbench 7 is provided on the transverse side of the cutting end of the bed body 1, a support mounting plate 8 is provided on the longitudinal end between the bed body 1 and the workbench 7, a support mounting plate 8 is provided, and a support blanking assembly 9 is slidably connected to the surface of the support mounting plate 8 on the side close to the laser cutting head mechanism 5 in the vertical direction, a collection box 10 is provided below the support blanking assembly 9, and a slag removal assembly 11 is provided on the workbench 7.

[0042] like Figures 2 to 5As shown, the supporting blanking assembly 9 includes a U-shaped lifting support plate 901, and both ends of the U-shaped lifting support plate 901 are slidably connected to the longitudinal side surface of the support mounting plate 8 in the vertical direction. A V-shaped supporting plate 902 is provided above the U-shaped lifting support plate 901, and the V-shaped supporting plate 902 and the axis of the fixed chuck 4 are located at the same longitudinal position. A supporting rotating shaft 903 is provided below the V-shaped supporting plate 902, and a first supporting rotating seat 904 is provided at both ends of the supporting rotating shaft 903. The first supporting rotating seat 904 is fixedly mounted on the top of the U-shaped lifting support plate 901, and the second supporting rotating seat 904 at one end of the supporting rotating shaft 903 is provided. A first rotary motor 905 is provided on the outside of a support rotating seat 904, and the first rotary motor 905 is fixedly mounted on the top of the U-shaped lifting support plate 901. The output end of the first rotary motor 905 is connected to one end of the support rotating shaft 903. A U-shaped support connecting plate 906 is provided on the outer surface of the support rotating shaft 903. A plurality of support plug rods 907 are equidistantly provided at the bottom of the V-shaped supporting plate 902. The support plug rods 907 are plugged and connected with the U-shaped support connecting plate 906. One end of the support plug rod 907 extends into the inside of the U-shaped support connecting plate 906 to install a limit block 908. The top of the limit block 908 In contact with the inner surface of the top of the U-shaped support connecting plate 906, a pressure sensor 909 is provided between the top of the U-shaped support connecting plate 906 and the support plug rod 907, a level sensor 910 is provided at one end of the bottom of the V-shaped supporting plate 902, and the two inclined surfaces on the inner side of the V-shaped supporting plate 902 are symmetrically provided with a number of supporting rollers 911 along the longitudinal direction, and an electromagnet 912 is provided between the two inclined surfaces on the inner side of the V-shaped supporting plate 902 and the supporting rollers 911. The outer surfaces of the V-shaped supporting plate 902 on both sides of the longitudinal direction corresponding to the position of the laser cutting head mechanism 5 are provided with air chambers 913. A number of dust extraction holes 914 are equidistantly provided on the inclined surfaces at both ends of the inner longitudinal side of the material plate 902. The dust extraction holes 914 on the inclined surfaces at both ends of the inner longitudinal side of the V-shaped material supporting plate 902 are respectively connected to the air cavities 913 on the outer surfaces of the two longitudinal sides of the V-shaped material supporting plate 902. The air cavities 913 are connected to the output end of the dust extraction mechanism. A lifting support mounting plate 915 is provided on the surface of the side of the U-shaped lifting support plate 901 close to the support mounting plate 8 in the longitudinal direction. A rotation limiting mechanism 916 is provided on the top of the lifting support mounting plate 915. A lifting mechanism 917 is provided between the lifting support mounting plate 915 and the support mounting plate 8.

[0043] The position of the V-shaped support plate 902 can be adjusted by driving the support rotation shaft 903 to rotate by the first rotating motor 905. When the V-shaped support plate 902 rotates to the highest point along the support rotation shaft 903, it is located in the same longitudinal position as the fixed chuck 4. Then, the lifting mechanism 917 cooperates to drive the V-shaped support plate 902 to rise and fall, so as to support and lift the pipe extending to the outside of the fixed chuck 4, thereby preventing it from sagging or jumping during rotation, thereby improving the quality of cutting processing. At the same time, the V-shaped support plate 902 is supported by the plug-in The structure in which the rod 907 and the limit block 908 cooperate is connected to the U-shaped support connecting plate 906, so that the pressure sensor 909 can monitor the gravity of the V-shaped supporting plate 902 itself. When supporting and lifting the pipe, the lifting force applied to the pipe can be monitored in real time according to the pressure difference, so as to avoid the pipe sagging, deformation or jumping caused by the excessive or insufficient supporting force, thereby further improving the quality of pipe cutting. After the pipe is cut, the lifting mechanism 917 will drive the V-shaped supporting plate 902 holding the pipe to descend, so that the V-shaped The supporting plate 902 is close to the collection box 10. After the pipe is cut and in the process of approaching the collection box 10, the electromagnet 912 is in a working state, which has a certain adsorption force on the cut pipe to prevent it from sliding off from the V-shaped supporting plate 902 during the lifting process. After the cut pipe in the V-shaped supporting plate 902 approaches the collection box 10, the electromagnet 912 stops working, and the first rotating motor 905 drives the supporting rotating shaft 903 to rotate, so that the V-shaped supporting plate 902 rotates 45-90 degrees, so that the cut pipe can be separated from the V-shaped The supporting plate 902 enters the collecting box 10, which solves the problem that the material drop height is large and the pipe is affected by its own gravity, which easily causes the pipe to be bumped or deformed by impact; in addition, the two inclined surfaces on the inner side of the V-shaped supporting plate 902 correspond to the position of the wind cavity 913 and the outer surface of the wind cavity 913 are provided with a protective layer made of graphite material, and the protective layer has a through hole at the dust extraction hole 914, which is connected to the dust extraction hole 914, and the inside of the wind cavity 913 is connected to the output end of the dust extraction mechanism to realize the removal of smoke and dust generated during the pipe cutting process.

[0044] like Figure 6As shown, the rotation limiting mechanism 916 includes a support limiting column 9161 arranged on the top of the lifting support mounting plate 915. When the V-shaped supporting plate 902 rotates to the highest point along the supporting rotating shaft 903, the longitudinal side surface contacts the longitudinal side surface of the support limiting column 9161, so as to facilitate the rapid adjustment of the V-shaped supporting plate 902 and the fixed chuck 4 to the same longitudinal position to support and lift the pipe; fixed mounting plates 9162 are provided on both sides of the support limiting column 9161, and a first lifting device 9163 is provided at the bottom of the fixed mounting plate 9162 away from the support limiting column 9161. The top output end of the first lifting device 9163 passes through the fixed mounting plate 9162 and extends A limiting pressure plate 9164 is installed above the V-shaped supporting plate 902. The limiting pressure plate 9164 is located on the lateral side of the first lifting device 9163 and is provided with a guide plug rod 9165. The guide plug rod 9165 is plugged into the fixed mounting plate 9162. An arc-shaped limiting groove 9166 is provided at the bottom of the limiting pressure plate 9164 corresponding to the axial position of the fixed chuck 4 in the longitudinal direction, so as to limit the rotating pipe and prevent it from jumping upward. At the same time, it can also cooperate with the electromagnet 912 to keep the relative position of the pipe stable during the process of the V-shaped supporting plate 902 driving the pipe to lift and lower, so as to prevent the pipe from slipping off the V-shaped supporting plate 902 during the lifting process.

[0045] like Figure 7 As shown, the lifting mechanism 917 includes a ball nut seat 9171 arranged in the longitudinal direction of the lifting support mounting plate 915 close to one end of the support mounting plate 8, and a transmission screw 9172 is arranged in the ball nut seat 9171. Second support rotating seats 9173 are arranged at both ends of the transmission screw 9172. The second support rotating seats 9173 are both connected to the longitudinal side surface of the support mounting plate 8. A second rotating motor 9174 is arranged on the outside of the second support rotating seat 9173 at one end of the transmission screw 9172. The second rotating motor 9174 is fixedly connected to the support mounting plate 8, and the output end of the second rotating motor 9174 is connected to one end of the transmission screw 9172, so as to drive the U-shaped lifting support plate 901 and the components installed on the U-shaped lifting support plate 901 to achieve lifting.

[0046] like Figures 8 and 9As shown, the slag removal component 11 includes a U-shaped lifting support frame 1101, both ends of the U-shaped lifting support frame 1101 are plug-connected to the top of the workbench 7, a second lifting device 1102 is provided between the middle of the bottom of the U-shaped lifting support frame 1101 and the top of the workbench 7, the top of the U-shaped lifting support frame 1101 is connected to a movable support seat 1103 along the horizontal sliding, a linear transmission mechanism 1104 is provided between the movable support seat 1103 and the longitudinal side surface of the U-shaped lifting support frame 1101, a guide support column 1105 is provided at one end of the top of the U-shaped lifting support frame 1101 near the fixed chuck 4, and a movable support rod 1106 is installed on the guide support column 1105, and the movable support rod 1106 is connected to the fixed chuck 4. The axis of the chuck 4 is located in the same longitudinal position, and the movable support rod 1106 is equipped with a support mounting rod 1107 near one end of the fixed chuck 4, and the other end is connected to the movable support seat 1103. A protective plate 1108 made of graphite material is provided on the top of the support mounting rod 1107, and a scraper plate 1109 is provided on the bottom to scrape off the slag generated on the inner wall of the pipe during the cutting process. The support mounting rod 1107 and the movable support rod 1106 are connected by bolts to facilitate the replacement of scraper plates 1109 of different models. With the cooperation of the second lifting device 1102 and the U-shaped lifting support frame 1101, round pipes of different sizes can be operated to improve the scope of application.

[0047] The linear transmission mechanism 1104 is a transmission structure in which a driving motor is installed with a transmission gear and a transmission rack that meshes, so as to realize driving the mobile support seat 1103 to slide horizontally, and with the cooperation of the guide support column 1105 and the mobile support rod 1106, drives the support installation rod 1107 installed with the scraper plate 1109 in and out of the inner side of the pipe; the upper surface of the electromagnet 912 is located between the inner surface of the V-shaped supporting plate 902 and the support lifting roller 911 away from the end of the inner surface of the V-shaped supporting plate 902, so as to avoid the inclined surface of the electromagnet 912 being too high and affecting the contact between the round pipe and the support lifting roller 911, thereby ensuring the supporting and lifting effect of the pipe, and making the electromagnet 912 close to the pipe to generate a certain adsorption force on it; between the first support rotating seat 904 and the support rotating shaft 903 and the second support rotating seat A rotating bearing is provided between 9173 and the transmission screw 9172 to ensure smooth rotation of the supporting rotating shaft 903 and the transmission screw 9172; in addition, the movable chuck 2 is installed with a moving mechanism to drive it to move, and the fixed chuck 4 is installed with a driving mechanism to drive it to rotate. The moving mechanism on the movable chuck 2, the driving mechanism on the fixed chuck 4, the laser cutting head mechanism 5, the first rotating motor 905, the pressure sensor 909, the level sensor 910, the electromagnet 912, the first lifting device 9163, the second rotating motor 9174, the second lifting device 1102, and the driving motor in the linear transmission mechanism 1104 are all electrically connected to the control device 6 to control the working status of each driving component and receive data transmitted by the pressure sensor 909 and the level sensor 910.

[0048] Working principle: Cutting preparation: The control device controls the first rotary motor to drive the support rotary shaft to rotate, so that the V-shaped support plate rotates to the highest point along the support rotary shaft, so that it is in the same longitudinal position as the axis of the fixed chuck. At the same time, the longitudinal side surface of the V-shaped support plate contacts the support limit column. Then, according to the size of the round tube, the second rotary motor is controlled to drive the transmission screw to rotate, and the U-shaped lifting support plate and the V-shaped support plate are driven to rise through the ball nut seat to support and lift the pipe extending out of the fixed chuck to prevent the pipe from sagging or jumping. At the same time, the pressure sensor will be Monitor the gravity changes of the V-shaped support plate at the same time, monitor the lifting force applied to the pipe according to the pressure difference, ensure that the lifting force is moderate, then control the first lifting device to drive the limit pressure plate to descend, and use the arc-shaped limit groove to limit the pipe to prevent the pipe from jumping upward during the rotation process. Finally, according to the size of the pipe, the height of the U-shaped lifting support frame is adjusted by the second lifting device, so that the movable support rod and the fixed chuck are in a coaxial position. Under the cooperation of the linear transmission mechanism, the movable support seat, the guide support column and the movable support rod, the support mounting rod and the scraper plate are driven to enter the pipe cutting position;

[0049] Cutting process: After the cutting preparation is completed, the laser cutting head mechanism can be controlled to emit a high-power density laser beam to perform thermal cutting on the pipe. During the cutting process, the smoke and dust generated by the cutting are removed through the cooperation of the air cavity, the dust extraction hole and the dust extraction mechanism connected to the air cavity at the output end. The scraper plate that extends into the cutting position inside the pipe scrapes off the slag generated during the cutting process. At the same time, different types of scrapers can be replaced according to the size of the pipe to improve the slag removal effect.

[0050] Blanking process: After the pipe is cut, the lifting mechanism drives the V-shaped support plate holding the pipe to descend and approach the collection box. During this process, the electromagnet continuously absorbs the pipe to prevent it from slipping. When the pipe approaches the collection box, the electromagnet stops working. At the same time, the first lifting device drives the limit pressure plate to rise and away from the pipe. Then the first rotating motor drives the supporting rotating shaft to rotate, causing the V-shaped support plate to rotate 45-90 degrees, so that the pipe is separated from the V-shaped support plate and falls into the collection box, completing the blanking.

[0051] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0052] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A laser tube cutting machine for round tubes, comprising a bed body (1), a movable chuck (2) being slidably connected to the bed body (1), a support mounting frame (3) being provided at the cutting end of the bed body (1), a fixed chuck (4) being provided inside the support mounting frame (3), a laser cutting head mechanism (5) being provided at the top of the support mounting frame (3), and a control device (6) being provided on one longitudinal side of the support mounting frame (3), characterized in that: A workbench (7) is provided on a transverse side of the cutting end of the bed body (1), a support mounting plate (8) is provided on a longitudinal end between the bed body (1) and the workbench (7), a support blanking assembly (9) is slidably connected to the surface of the support mounting plate (8) on one side close to the laser cutting head mechanism (5) in a vertical direction, a collection box (10) is provided below the support blanking assembly (9), and a slag removal assembly (11) is provided on the workbench (7); The support blanking assembly (9) includes a U-shaped lifting support plate (901), and the two ends of the U-shaped lifting support plate (901) are slidably connected to the longitudinal side surface of the support mounting plate (8) in the vertical direction. A V-shaped support plate (902) is provided above the U-shaped lifting support plate (901), and the axis of the V-shaped support plate (902) and the fixed chuck (4) are located at the same longitudinal position. A support rotating shaft (903) is provided below the V-shaped support plate (902), and both ends of the support rotating shaft (903) are provided with a first support rotating seat (904), and the first support rotating seat (904) is fixedly installed on the top of the U-shaped lifting support plate (901). The support rotating shaft (903) at one end is provided with a support rotating seat (904). A first rotating motor (905) is provided on the outside of the first supporting rotating seat (904), the first rotating motor (905) is fixedly installed on the top of the U-shaped lifting supporting plate (901), the output end of the first rotating motor (905) is connected to one end of the supporting rotating shaft (903), the outer surface of the supporting rotating shaft (903) is provided with a U-shaped supporting connecting plate (906), a plurality of supporting plug rods (907) are equidistantly provided at the bottom of the V-shaped supporting plate (902), the supporting plug rods (907) are plug-connected with the U-shaped supporting connecting plate (906), one end of the supporting plug rod (907) extends into the inside of the U-shaped supporting connecting plate (906) to install a limiting block (908), the limiting block (908) 08) The top of the U-shaped support connecting plate (906) contacts the inner surface of the top, and the top of the U-shaped support connecting plate (906) is provided with a pressure sensor (909) between the support plug rod (907). The bottom end of the V-shaped support plate (902) is provided with a levelness sensor (910). The two inclined surfaces on the inner side of the V-shaped support plate (902) are symmetrically provided with a plurality of support rollers (911) along the longitudinal direction. The two inclined surfaces on the inner side of the V-shaped support plate (902) are located between the support rollers (911) and an electromagnet (912) is provided. The outer surfaces of the two longitudinal sides of the V-shaped support plate (902) corresponding to the position of the laser cutting head mechanism (5) are provided with air cavities (913). The inclined surfaces at both ends of the inner longitudinal side of the V-shaped support plate (902) are equidistantly provided with a plurality of dust extraction holes (914). The dust extraction holes (914) on the inclined surfaces at both ends of the inner longitudinal side of the V-shaped support plate (902) are respectively connected to the air cavities (913) on the outer surfaces of the two longitudinal sides of the V-shaped support plate (902). The air cavities (913) are both connected to the output end of the dust extraction mechanism. A lifting support mounting plate (915) is provided on the surface of the side of the U-shaped lifting support plate (901) close to the support mounting plate (8). A rotation limiting mechanism (916) is provided on the top of the lifting support mounting plate (915). A lifting mechanism (917) is provided between the lifting support mounting plate (915) and the support mounting plate (8).

2. The laser tube cutting machine for round tubes according to claim 1, characterized in that: The rotation limiting mechanism (916) includes a support limiting column (9161) arranged on the top of the lifting support mounting plate (915); when the V-shaped supporting plate (902) rotates to the highest point along the support rotating shaft (903), the longitudinal side surface contacts the longitudinal side surface of the support limiting column (9161); fixed mounting plates (9162) are provided on both lateral sides of the support limiting column (9161); and a first lifting device (9163) is provided at the bottom of one end of the fixed mounting plate (9162) away from the support limiting column (9161). The top output end of the first lifting device (9163) passes through the fixed mounting plate (9162) and extends to the top of the V-shaped supporting plate (902), where a limiting pressure plate (9164) is installed. The limiting pressure plate (9164) is located on a lateral side of the first lifting device (9163) and is provided with a guide plug-in rod (9165). The guide plug-in rod (9165) is plug-connected to the fixed mounting plate (9162). The bottom of the limiting pressure plate (9164) is longitudinally provided with an arc-shaped limiting groove (9166) corresponding to the axial position of the fixed chuck (4).

3. The laser tube cutting machine for round tubes according to claim 2, characterized in that: The lifting mechanism (917) includes a ball nut seat (9171) arranged on the lifting support mounting plate (915) in the longitudinal direction close to one end of the support mounting plate (8), a transmission screw (9172) is arranged in the ball nut seat (9171), and second support rotating seats (9173) are arranged at both ends of the transmission screw (9172), and the second support rotating seats (9173) are connected to the longitudinal side surface of the support mounting plate (8), and a second rotating motor (9174) is arranged outside the second supporting rotating seat (9173) at one end of the transmission screw (9172), and the second rotating motor (9174) is fixedly connected to the support mounting plate (8), and the output end of the second rotating motor (9174) is connected to one end of the transmission screw (9172).

4. The laser tube cutting machine for round tubes according to claim 3, characterized in that: The upper surface of the electromagnet (912) is located between the inner surface of the V-shaped supporting plate (902) and one end of the supporting roller (911) away from the inner surface of the V-shaped supporting plate (902).

5. The laser tube cutting machine for round tubes according to claim 4, characterized in that: Rotary bearings are provided between the first supporting rotating seat (904) and the supporting rotating shaft (903), and between the second supporting rotating seat (9173) and the transmission screw (9172).

6. The laser tube cutting machine for round tubes according to claim 5, characterized in that: The slag removal component (11) includes a U-shaped lifting support frame (1101), both ends of the U-shaped lifting support frame (1101) are plug-connected to the top of the workbench (7), a second lifting device (1102) is provided between the middle of the bottom of the U-shaped lifting support frame (1101) and the top of the workbench (7), a movable support seat (1103) is connected to the top of the U-shaped lifting support frame (1101) in a transverse sliding manner, a linear transmission mechanism (1104) is provided between the movable support seat (1103) and a longitudinal side surface of the U-shaped lifting support frame (1101), and the U-shaped lifting support frame (1101) is provided with a plurality of lifting devices (1102) and a plurality of lifting devices (1103) provided with a plurality of lifting devices (1104 ... 101) A guide support column (1105) is provided at the top near one end of the fixed chuck (4), and a movable support rod (1106) is installed on the guide support column (1105), and the movable support rod (1106) and the axis of the fixed chuck (4) are located at the same longitudinal position, and a support mounting rod (1107) is installed at one end of the movable support rod (1106) near the fixed chuck (4), and the other end is connected to the movable support seat (1103), and a protective plate (1108) made of graphite material is provided on the top of the support mounting rod (1107), and a scraper plate (1109) is provided on the bottom.

7. The laser tube cutting machine for round tubes according to claim 6, characterized in that: The linear transmission mechanism (1104) is a transmission structure in which a drive motor is equipped with a transmission gear and a transmission rack that mesh with each other.

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